Larry Sanger, the ex co-founder of Wikipedia, wants to creat its alternative - Citizendium. His goal is to avoid the vandalism and inconsistency of the previous project.

Like Wikipedia, Citizendium will be nonprofit, devoid of ads and free to read and edit. Unlike Wikipedia, Citizendium's volunteer contributors will be expected to provide their real names. Experts in given fields will be asked to check articles for accuracy.

"If there's going to be a free encyclopedia, I'd like there to be a better free encyclopedia," says Sanger, 38, who has a doctorate in philosophy and speaks slowly, as if cautiously choosing every word. "It has bothered me that I helped to get a project started, Wikipedia, that people are misusing in this way, and yet the project itself has little chance of radically improving."